Windows Desktop · AES-256-GCM · Windows Hello · Zero Cloud

LEYNIR
NOTES

To conceal is to protect.
Private note-taking. AES-256-GCM secured.

[ your words. your key. your machine. ]

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AES-256-GCM ENCRYPTION
PBKDF2-SHA512 · 600K ITERATIONS
WINDOWS HELLO BIOMETRICS
EISENHOWER MATRIX BUILT-IN
NO CLOUD · NO TELEMETRY

Your vault. Your rules.
No exceptions.

Leynir Notes is a Windows desktop note-taking app built for those who believe privacy isn't a feature - it's the foundation. Everything you write is sealed inside a single encrypted .vnote file on your own machine.

No accounts. No sync servers. No company with access to your thoughts. The key lives only in your memory. The data lives only on your disk.

● Leynir Notes StefanBopp.vnote
Notes
Files
Matrix
FOLDERS
Personal 1
Lists 3
Relationship 19
Health 4
App Dev 1
🔒 Lock Vault
Reminders
● Unlocked 5 folders · 28 notes · 1 file Leynir Notes v1.0
Security Architecture

Military-grade encryption,
designed from first principles.

Every byte of your vault passes through AES-256-GCM - the same standard used by governments and banks worldwide. Your master password never leaves your device; it's stretched through PBKDF2 with 600,000 iterations before it ever touches your data.

Unlock with your fingerprint or face via Windows Hello biometrics - convenience without compromise. The vault key is wiped from memory on lock or close. Only a SHA-256 verifier hash ever touches disk.

CipherAES-256-GCM
Key derivationPBKDF2-SHA512
Iterations600,000 (vault) · 100,000 (note)
Salt32 bytes (random)
IV12 bytes (per save)
Auth tag16 bytes (GCM tamper-proof)
BiometricsWindows Hello (WinRT APIs)
Password storageNever - SHA-256 verifier only
VAULT FILE STRUCTURE
header
VNOT
v1
salt
32 random bytes
verifier
SHA-256 hash (64 bytes)
IV
12 bytes
auth tag
16 bytes
payload
AES-256-GCM ciphertext
Features

Everything you need.
Nothing you don't.

📝

MARKDOWN EDITOR

Split-pane live preview, editor-only, or preview-only modes. Full Markdown support - headings, tables, task checkboxes, code blocks, images, links, and more. Click checkboxes right in the preview.

📄

SYNTAX HIGHLIGHTING

Built-in highlighting for JS/TS, Python, HTML, CSS, JSON, SQL, Bash, Rust, Go, C#, and Java - all inside your encrypted vault, no external tools needed.

📁

COLOURED FOLDER HIERARCHY

Nested folders with custom colours, expand/collapse, drag-and-drop manual ordering, A–Z sorting, and live note counts per folder.

✏️

EISENHOWER MATRIX

A built-in 2×2 priority matrix - Do, Schedule, Delegate, Eliminate. Manage tasks per quadrant, mark them done, or archive them. Matrix blocks can also be embedded inline in any note.

🔒

PER-NOTE LOCKING

Individual notes can have their own password, encrypted with a separate 100,000-iteration PBKDF2 key. A vault within your vault.

👤

WINDOWS HELLO

Unlock your vault with your fingerprint or face via Windows Hello biometrics. Falls back to your master password on any device that doesn't support it.

📎

FILE ATTACHMENTS

Attach PDFs, Office docs, images, archives, and more - up to 25 MB per file. Open with your system default app or export to disk. Sort by name, date, size, or type.

🔍

SEARCH & SORT

Full-text search and tag-based filtering across all your notes. Sort by date modified, date created, or title - always find what you need instantly.

☀️

DARK & LIGHT THEMES

A carefully crafted dark theme and a clean light theme. Auto-save after every edit. Resizable panels. Word wrap toggle. Word count always visible.

AUTO-LOCK

Configurable inactivity timeout wipes the vault key from memory automatically. Walk away from your desk without a second thought.

🔐

SINGLE ENCRYPTED VAULT

Everything lives in one portable .vnote file. Back it up to a USB drive, a hard disk, anywhere - without your password it's indecipherable noise.

🚫

ZERO CLOUD

No accounts. No servers. No telemetry. No subscriptions. Your data never touches the internet unless you choose to put it there.

Built for those who take privacy seriously.

Journalists protecting sources. Lawyers keeping privileged notes. Security researchers. Executives. Writers. Or anyone who simply believes their private thoughts should stay private.

"The best vault is the one that can't be broken, even if the file is stolen."

JOURNALIST

Source notes that can never be subpoenaed from a server that doesn't exist.

SECURITY RESEARCHER

Vulnerability notes, credentials, and findings in an auditable, offline vault.

PRIVATE INDIVIDUAL

Your diary. Your ideas. Your life. Yours alone.

One price. Forever yours.

No subscription. No renewal. Pay once, own it for life.

LEYNIR NOTES — FULL LICENSE
$ 4 .99
ONE-TIME PURCHASE · WINDOWS 10 / 11
EVERYTHING INCLUDED
Full app - no feature limits, ever
AES-256-GCM encrypted vault
Windows Hello biometric unlock
Per-note password locking
Eisenhower Matrix task manager
File attachments (up to 25 MB/file)
Markdown editor with live preview
Dark & light themes
All future updates included
No cloud. No account. No telemetry.
How do I get the app after purchase?
You'll receive an instant download link by email from Lemon Squeezy right after checkout. No account creation needed.
What does "one-time purchase" mean?
You pay $4.99 once and own the app forever, including all future updates. There are no subscriptions, renewals, or hidden fees.
Is my payment information safe?
Payments are handled entirely by Lemon Squeezy, a trusted merchant of record. Your card details never touch our servers - we never see them.
Can I try it before buying?
Reach out via the email in the footer and we'll sort you out. We stand behind the product.
Has the code been security audited?
Leynir Notes has not undergone an independent third-party security audit. The encryption is implemented using AES-256-GCM and PBKDF2-SHA512 via Node.js's built-in crypto module — standard, well-vetted algorithms. That said, use your own judgement for highly sensitive data.
256
BIT KEY
600K
ITERATIONS
0
CLOUD SERVERS
0
RUNTIME DEPS